📚 Practice Mode

Astronomical Distances and Light Years

Learn at your own pace with hints and detailed explanations

1 / 28
Multiple Choice

The distance of a galaxy from the earth is of the order of $10^{25}$ m. The time taken by light to reach the earth from the galaxy is

  1. $3 \times 10^{14}$ s
  2. $3 \times 10^{16}$ s
  3. $3 \times 10^{18}$ s
  4. $3\times10^{20}$ s
Change Mode